1. Money

Rollin Justin Robot

A 'Rollin Justin' robot, developed by the German air and space agency

'Rollin Justin' robot, developed by the German air and space agency, the Deutsches Zentrum fuer Luft und Raumfahrt (DLR), mixes instant tea at the 2009 CeBIT technology trade fair on March 4, 2009 in Hanover, Germany

Sean Gallup/Getty Images
See More About

©2013 About.com. All rights reserved.